Home / 81,274,118.86-121,882,834.77-35,811,112.78

Finding the Fourth Proportional to 81,274,118.86, 121,882,834.77 and 35,811,112.78

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Solution

The fourth proportional to 81,274,118.86, 121,882,834.77 and 35,811,112.78 is: 53,704,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,274,118.86 : 121,882,834.77 = 35,811,112.78 : x
  2. Step 2: Convert to fraction form
    81,274,118.86/121,882,834.77 = 35,811,112.78/x
  3. Step 3: Cross multiply
    81,274,118.86x = 121,882,834.77 × 35,811,112.78
  4. Step 4: Simplify right side
    81,274,118.86x = 4,364,759,941,894,575.50
  5. Step 5: Solve for x
    x = 4,364,759,941,894,575.50/81,274,118.86
  6. Step 6: Final answer
    x = 53,704,180.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.